Nichelle Nichols, the actress who brought Lieutenant Uhura in Star Trek to life, has been diagnosed with dementia, according to conservatorship documents obtained by TMZ. She is 85 years old.

TMZ says that Dr. Meena Makhijani, a specialist in osteopathic medicine, has been treating Nichols for the last two to three years. According to Makhijani, the disease has progressed. Nichols has significant impairment of her short-term memory and “moderate impairment of understanding abstract concepts, sense of time, place, and immediate recall,” reports TMZ.


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